Method for performing a screwing process using a screwing tool

Abstract

Method for performing a screwing process (100, 101) by means of a screwing tool (2, 3), comprising the following process steps: - Providing (110) a first screw tool (2) which is received or can be received in a first screw tool receptacle (4); - Providing (120) a second screwdriver (3) which is held or can be received in a second screwdriver holder (5); - Generating (130) a removal information (200) describing the removal of the first and / or the second screw tool (2, 3) when the first and / or second screw tool (2, 3) is removed from the respective screw tool holder (4, 5); - Comparing (140) the withdrawal information (200) with a target withdrawal information (210) provided by an assembly management system (6), wherein the target withdrawal information (210) describes a target screw tool intended for an upcoming screwing process (100) and outputting (150) a comparison information (220) describing the comparison (140).

Description

[0001] The invention relates to a method for carrying out a screwing process by means of a screwing tool.

[0002] Corresponding methods for executing a screwing process using a screwing tool are generally known from the prior art. For example, executing a series of screwing processes may require the use of different screwing tools or screwing tools with different screwing parameters (e.g., torque limit and / or cut-off values) for different screwing locations or screwing cases. It may happen that the operator operating the screwing tool uses the wrong screwing tool and thus executes the screwing process using screwing parameters that do not correspond to the predetermined screwing parameters.

[0003] The invention is based on the object of specifying a method which, in particular with regard to a simple, quick and cost-effective measure, reduces the susceptibility to errors when carrying out screwing processes requiring a large number of different screwing parameters and / or different screwing tools.

[0004] The object is achieved by a method for carrying out a screwing process using a screwing tool according to claim 1. The dependent claims relate to possible embodiments of the method. Furthermore, the object is achieved by the arrangement according to claim 11.

[0005] The invention relates to a method for carrying out a screwing process using a screwing tool, wherein initially a first screwing tool is provided, which is received or can be received in a first screwing tool holder, and a second screwing tool is provided, which is received or can be received in a second screwing tool holder. The screwing tool holders can be designed such that only a specific screwing tool can be inserted into at least one screwing tool holder, or that at least one further screwing tool cannot be inserted into the screwing tool holder. For example, only a first screwing tool from a defined group of screwing tools can be inserted into a first screwing tool holder, and only a second screwing tool from a defined group of screwing tools can be inserted into a second screwing tool holder.For example, according to a geometric key-keyhole principle, the insertion of a first screwing tool into a first screwing tool holder can be enabled and the insertion of a second screwing tool into the first screwing tool holder can be prevented. In other words, a screwing tool holder can have a geometric shape that prevents the insertion of screwing tools not intended for this purpose. Alternatively, the at least one screwing tool holder can not correspond to the above-described key-keyhole principle, so that different screwing tools can be inserted alternately into the screwing tool holder. In other words, the respective screwing tool and its screwing tool holder can have opposite or corresponding geometric sections.

[0006] The method further provides for the generation of removal information describing the removal of the first and / or second screwing tool when the first and / or second screwing tool is removed from the respective screwing tool holder. For this purpose, a removal detection means can be assigned to the first and / or the second screwing tool holder, in particular to each other. For example, the removal detection means can be designed as a proximity sensor. This allows contact-free detection, i.e. without contact between the sensor and the screwing tool, to be carried out. For this purpose, the proximity sensor can be designed, for example, as an inductive sensor and / or as a capacitive sensor and / or as a magnetic sensor and / or as an optical sensor and / or as a light barrier and / or as an ultrasonic sensor. Alternatively, the removal detection means can be designed as a sensor that contacts the screwing tool to be detected, e.g.Inserting and / or removing the screwing tool activates a button whose signal indicates the inserted and / or removed state of the screwing tool. The screwing tool holders for storing or handling the screwing tools can be arranged, for example, on a mobile supply trolley, in particular, they can be mounted captively.

[0007] Furthermore, the method provides for a comparison of the removal information with target removal information provided by an assembly management system, wherein the target removal information describes a target screwing tool intended for an upcoming screwing process. Finally, comparison information describing the comparison is output. The output comparison information signals to a worker using the screwing tool whether or not they have removed the correct screwing tool from the screwing tool holder. This prevents a worker from using the wrong screwing tool to carry out an upcoming screwing process because they receive an early indication, i.e. before the screwing process is carried out, that they have gripped the wrong screwing tool or removed it from the holder.

[0008] It is possible for at least one output device assigned to at least one screwing tool holder to output an acoustic and / or optical and / or haptic information signal depending on the target removal information, in particular depending on the comparison information. For example, target removal information can indicate to the worker via the output device before, during or after a screwing tool is removed from the screwing tool holder which screwing tool is the one intended for at least the next screwing process to be carried out, or in which screwing tool holder the screwing tool intended for the next screwing process to be carried out is located. The information signal can, for example, be provided by means of a voice output; for example, the at least two screwing tools can be provided with different numbers or other features, and the voice output indicates the corresponding number or number.the corresponding other feature to refer to the defined screwing tool. A haptic signal can, for example, be implemented in the form of a vibration of the screwing tool to be gripped; for this purpose, the screwing tool holder in whose holder the specific screwing tool is located can be vibrated. An optical indication signal can, for example, be provided by the activation and / or by a defined luminous color of a light source, in particular at least one light source designed as an LED. For this purpose, a light source can be assigned to at least one output device, and an indication of a specific screwing tool or of a screwing tool holder receiving a specific screwing tool can be given by activating the light source and / or by emitting a defined luminous color.

[0009] It is possible that a first output device is assigned to a first screwing tool holder and a second output device is assigned to a second screwing tool holder, or that the first and second screwing tool holders each have an output device and, depending on the target removal information, at least the output device or exclusively the output device outputs an indication signal which has received the screwing tool intended for the next screwing process in its screwing tool holder.

[0010] The method described herein can be used, for example, for the use of three or more screwing tools with different screwing parameters, wherein each screwing tool can be accommodated in a screwing tool holder provided specifically for this purpose.

[0011] For example, a screwing tool that does not have a communication connection, in particular a wired or wireless communication connection, with the assembly management system can be used as the first and / or second screwing tool. In other words, the at least one screwing tool cannot have a communication connection that transmits or could transmit information about the type of screwing tool, i.e., the nature and properties of the screwing tool, and / or the screwing parameter settings of the screwing tool. For example, it can be at least one screwing tool that is purely mechanical in design and / or has no data interface for data transmission - optionally with the exception of charging information from an electrical energy storage device of the screwing tool.The at least one screwing tool can, for example, have a simple design and, for example, not contain a radio module and / or any other type of data interface with an assembly management system. Thus, the present method also allows for the safeguarding or quality improvement of simple screwing tools that, for example, do not have a direct data interface to a higher-level assembly management system. A simple screwing tool can, for example, be a screwing tool that is operated or works purely by muscle power.

[0012] As the first and / or second screwing tool, for example, a screwing tool can be used which has an electrical energy storage device for driving an actuator for carrying out screwing processes, and charging of the electrical energy storage device on the screwing tool side is carried out or can be carried out when the screwing tool is accommodated in the screwing tool holder. The at least one screwing tool can therefore be a so-called cordless screwdriver. In other words, the screwing tool holder can be provided with a charging structure such that an electrical energy storage device of a screwing tool inserted in the screwing tool holder can be charged by the charging structure. Optionally, the charging structure can be used to derive or generate removal information for a screwing tool removed from the screwing tool holder.For example, the charging structure can detect, in particular based on evaluated electrical charging currents and / or electrical charging voltages, whether a screwdriver held in the screwdriver holder is being charged and / or whether a screwdriver with a fully charged energy storage device is present on the charging structure. Based on this, if the two aforementioned charging states are excluded, it can be concluded that the screwdriver is not in the screwdriver holder.

[0013] It is possible for the method to further comprise (a) setting a first screwing parameter of a first screwing tool, in particular by actuating a parameter input means on the screwing tool side, (b) setting a second screwing parameter of a second screwing tool, in particular by actuating a parameter input means on the screwing tool side, (c) generating first assignment information describing an assignment of the first screwing parameter to a first screwing tool holder, and (d) generating second assignment information describing an assignment of the second screwing parameter to a second screwing tool holder, and (e) providing the first and second assignment information in the assembly management system and generating target removal information based on the first and / or second assignment information.In other words, it can be provided that a setting of screwing parameters for the respective screwing tool is carried out on at least two screwing tools. For example, a torque limit value or a release torque can be specified as a screwing parameter of the screwing tool to prevent a torque exceeding this torque limit value on the screw connection screwed together with the correspondingly set screwing tool. The assignment information can be linked to screwing process execution information, so that in order to carry out a screwing process on an assembly to be screwed together, a defined screwing point or a defined screwing case must be carried out using a predetermined screwing tool set to defined screwing parameters. In other words, a defined screwing point orA screwing tool set with corresponding defined screwing parameters is assigned to a defined screwing case and its use ensures compliance with a specified screwing connection.

[0014] In an optional embodiment, it can be provided, for example, that the insertion of a screwing tool into a screwing tool holder is detected, in particular by at least one removal detection means, or corresponding insertion information describing the insertion of a screwing tool into a screwing tool holder can be transmitted to the assembly management system or the computer unit. Depending on the insertion information, an output signal can be output by means of the output device. Such an output signal, which takes insertion information into account, can, for example, signal to a worker that the screwing tool was used correctly or provide the worker with positive feedback on the immediately preceding assembly step, in particular the screwing step.It is also possible to link the insertion information with location information of the last assembly screwed together using the screwing tool used and / or with location information of the next assembly to be screwed together. Such a link can increase the informative value of the feedback provided to the operator.

[0015] It is possible to output an information signal which, depending on the target removal information, describes an information about the target screwing tool intended for an upcoming first screwing process, and also to output a preparation signal which, depending on the target removal information, describes a preparation information about a target screwing tool intended for a second screwing process which will take place after the upcoming first screwing process. The information signal therefore shows the worker the screwing tool to be used for carrying out a screwing process at a first screwing location or first screwing case which is about to happen, in particular immediately, and the preparation information shows the screwing tool which is to be used for the screwing process at the first screwing location or first screwing case, in particular immediately after the screwing tool-assisted screwing has been carried out.The screwing performed at the first screw joint is to be used at a second screw joint location or screw joint. The preparation instruction can, for example, output a signal that refers to a screwing tool that has already been used for the first screw joint location or screw joint, or to a screwing tool that is different from the screwing tool used for the first screw joint location or screw joint.

[0016] It is possible for the target removal information to be generated depending on location information describing the physical position of an assembly assigned to the screwing process. The location information of the assembly specifies, for example, the location of the assembly within an assembly environment. For example, individual areas of an assembly environment, e.g. an assembly hall, can be assigned to individual assembly steps. In this case, the assemblies to be assembled can pass through individual areas of the assembly environment, at least in sections, successively in a predefined sequence, so that based on the location information for an assembly, it is possible to infer which assembly step was last carried out and / or is to be carried out next and / or is currently being carried out. Accordingly, based on the location information orFrom the location determination of an assembly, a statement can be derived about the next and / or next-but-one and / or last-used screwing tool, and this statement can be used to generate or specify target removal information. For example, a geofencing method can be used to obtain location information for the assembly to be screwed together using the at least one screwing tool, so that, for example, the target removal information can be influenced if the assembly exceeds geolocated boundaries.

[0017] In an optional further development of the method, a comparison result can be generated from at least two comparisons of removal information and evaluation information describing the target removal information. Such evaluation information can, for example, comprise a counter function so that the number of defined comparison results, in particular assembly-specific and / or assembly-type-specific, can be output. For example, the number and / or frequency of incorrect removal of a screwing tool can be evaluated. Here, for example, an analysis of the susceptibility to errors regarding incorrect removal of the screwing tool can be performed for a recurring, similar screwing case and / or for a workstation.

[0018] It is possible for a first screwing tool to have a first color marking and a second screwing tool to have a second color marking that differs from the first color marking. The indication signal, which, depending on the target removal information, indicates the target screwing tool intended for an upcoming first screwing process, outputs a color signal via an output device that corresponds to the color marking of the screwing tool to be used for the upcoming screwing process. This allows a worker to identify which screwing tool should be used for the upcoming and / or subsequent screwing process by comparing the color marking on the screwing tool and the color output by the output device.

[0019] In addition to the method, the invention relates to an arrangement comprising at least one screwing tool and at least one screwing tool holder, wherein the at least one screwing tool can be received in the screwing tool holder, wherein a removal detection means is assigned to the screwing tool holder, wherein the removal detection means is configured to detect the removal of the at least one screwing tool from the screwing tool holder and to generate removal information. Furthermore, the arrangement comprises a computer unit which is configured to compare the removal information with target removal information in the course of a comparison. Finally, the arrangement comprises an output device for outputting comparison information describing the comparison. The removal detection means and / or the output device and / or the computer unit can, for example, be arranged in or on the screwing tool holder.For example, the screwing tool holder has a housing body in or on which the removal detection means and / or the output device and / or the computer unit is or can be arranged.

[0020] All advantages, details, embodiments and / or features of the method according to the invention are transferable or applicable to the arrangement according to the invention.

[0021] The invention is explained in more detail using exemplary embodiments in the drawings. In the drawings: Fig. 1 a schematic diagram of an arrangement according to an embodiment; Fig. 2 a schematic representation of a method for carrying out a screwing process by means of a screwing tool according to an embodiment.

[0022] The method for carrying out a screwing process 100, 101 using a screwing tool 2, 3, comprising the method steps specified below, wherein firstly, a first screwing tool 2, which is received or can be received in a first screwing tool holder 4, is provided 110, and a second screwing tool 3, which is received or can be received in a second screwing tool holder 5, is provided 120. As soon as one of the two screwing tools 3, 4 is removed from its screwing tool holder 4, 5, removal information 200 is generated. In other words, removal information 200 describing the removal of the first and / or second screwing tool 2, 3 is generated 130 upon removal of the first and / or second screwing tool 2, 3 from the respective screwing tool holder 4, 5.The removal information 200 is then compared 140 with target removal information 210 provided by an assembly management system 6, wherein the target removal information 210 describes a target screwing tool determined for an upcoming screwing process 100. In other words, information about the sequence of several assembly processes, in particular several screwing processes 100, 101, is stored in a computer unit 12, e.g., in a computer unit 12 comprising a PLC controller or in a computer unit 12 controlling a PLC controller. This stored information can, for example, include the order of use of specific screwing tools 2, 3 and / or an assignment of specific screwing tools 2, 3 to specific screwing cases and / or screwing locations 13, 14.

[0023] A screw joint or a screw location 13, 14 can, for example, form a defined screw connection on an assembly to be screwed together and / or on an assembly comprising a defined screw connection. For example, two components of an assembly can be screwed together by means of two screw connections to be created, wherein a first screw connection can represent a first screw joint 13 and the second screw connection a second screw joint 14. In an assembly management system 6, different screwing tools 2, 3, in particular screwing tools 2, 3 each with different screw parameter settings, can be assigned to the at least two screw joints 13, 14. By comparing 140 the target removal information 210 orThe information about which screwing tool 2, 3 is to be used for the respective screwing case 13, 14, in particular for the preferably immediately imminent screwing case 13, 14, and whether or not it has been removed from the screwing tool holder 4, 5, can be signaled to the worker by outputting 150 a comparison information 220 describing the comparison 140, indicating whether he has also removed the correct screwing tool 3, 4. The comparison information 220 can be provided, for example, by an output device 7, 8 illuminating, so that the worker is shown good information.

[0024] Depending on the target removal information 210, for example, at least one output device 7, 8 associated with at least one screwing tool holder 4, 5 can output an acoustic and / or optical and / or haptic indication signal. This indication signal can be issued in a good and / or bad case, ie, an indication signal can be issued in the case that the correct screwing tool 2, 3 and / or in the case that the incorrect screwing tool 2, 3 was removed.

[0025] As in Fig. 1, a first output device 7 can be assigned to a first screwing tool holder 4 and a second output device 8 can be assigned to a second screwing tool holder 5, or can have such a device, and depending on the target removal information 210, at least the output device 7, 8 or exclusively the output device 7, 8 can output an indication signal which the screwing tool 2, 3 intended for the next screwing process 100, 101 has been received in its screwing tool holder 4, 5. In other words, by appropriately and specifically outputting an indication signal to the output device 7, 8 that has received the screwing tool 2, 3 to be used for the upcoming screwing process 100, 101, the worker can be signaled which screwing tool 2, 3 he or she should remove from the screwing tool holder 4, 5 and, in particular, which he or she should use for carrying out the upcoming screwing process 100, 101 or screwing case 13, 14.

[0026] For example, a screwing tool 2, 3 that does not have a communication connection, in particular a wired or wireless communication connection, with the assembly management system 6 can be used as the first and / or second screwing tool 2, 3. In other words, a strength of the method and the arrangement described herein is that even when using screwing tools 2, 3 that do not have a communication interface with an assembly management system 6, a reduction in misapplications or incorrect use of the screwing tools 2, 3 is still possible.

[0027] For example, a screwing tool 2, 3 can be used as the first and / or second screwing tool 2, 3, which has an electrical energy storage device 9 for driving an actuator for carrying out screwing processes 100, 101, wherein charging of the electrical energy storage device 9 on the screwing tool side is carried out or can be carried out when the screwing tool 2, 3 is received in the screwing tool holder 4, 5. In other words, at least one screwing tool holder 4, 5, in particular all screwing tool holders 4, 5, can be equipped with a charging structure (not shown) for charging screwing tools 2, 3 inserted in the screwing tool holder 4, 5 and provided with an electrical energy storage device.

[0028] The method can, for example, provide for a setting of a first screwing parameter of a first screwing tool 2, in particular by actuating a parameter input means 10 on the screwing tool side, and a setting of a second screwing parameter of a second screwing tool 3, in particular by actuating a parameter input means 10 on the screwing tool side, to be carried out or to be executable, and furthermore a generation of first assignment information describing an assignment of the first screwing parameter to a first screwing tool holder 4 and a generation of second assignment information describing an assignment of the second screwing parameter to a second screwing tool holder 5, wherein the first and the second assignment information are stored in the assembly management system 6 andthe computer unit 12 is provided and, based on the first and / or second assignment information, target removal information 210 is generated. In other words, information about the setting of the screwdriving tools 4, 5 with regard to their mode of operation is transmitted or provided to the assembly management system 6, so that the assembly management system 6 can specify the use of defined, set or operating screwdriving tools 2, 3 or indicate this to the worker by assigning the screwdriving tools 4, 5 to defined screwdriving processes 100, 101 or to defined screwdriving cases 13, 14.

[0029] Optionally, the method can be provided for outputting an indication signal which, depending on the desired removal information 210, describes an indication of the desired screwing tool 2 intended for a, in particular immediately imminent, first screwing process 100, and further outputting a preparation signal which, depending on the desired removal information 210, describes a preparation indication of a desired screwing tool 2, 3 intended for a second screwing process 101 which will take place chronologically after the imminent first screwing process 100. This enables the worker to receive an indication of both the screwing tool 2, 3 to be used next and the screwing tool 2, 3 to be used thereafter.For example, in a repeating sequence of similar screwing processes 100, 101 and a corresponding similar sequence of alternating use of the screwing tools 2, 3, the worker can recognize or perceive further information, e.g., the information as to which phase he is currently and / or shortly in within a higher-level phase of a similarly repeating overall assembly process comprising a plurality of screwing processes 100, 101.

[0030] Furthermore, it is possible for the target removal information 210 to be generated depending on location information describing the physical position of an assembly to be subjected to a screwing process 100, 101 or a screwing operation 13, 14. Thus, location information of an assembly can be processed in the assembly management system in such a way that the, in particular the immediate, next, or a later screwing operation 13, 14 is triggered. This can mean that, depending on the location information of this assembly, an output device 7, 8 can be activated in order to check the screwing tool 2, 3 to be used and / or to verify the screwing tool 2, 3 removed from the screwing tool holder 4, 5 against the target screwing tool 2, 3 to be used or a corresponding target removal information 210.The location information on the assembly to be screwed together can, for example, be recorded using additional recording devices and transmitted to the assembly management system.

[0031] In Fig.2, an optional, supplementary method variant is shown in dashed lines, according to which evaluation information 230 is generated, which is derived from comparison results from at least two comparisons 140 of removal information 200 and target removal information 210 or from at least two comparison information 220. The comparison information 220 from at least two comparisons 140 is combined in an evaluation step or by evaluation 160, and evaluation information 230 is generated. This evaluation information 230 can, for example, indicate the susceptibility to errors or the progression of errors during the removal of the at least one screwing tool 2, 3 from the screwing tool holders 4, 5.The evaluation information 230 can, for example, be based on and / or filtered for a similar screwing case 13, 14 of a group of identical or similar assemblies to be screwed and / or for a defined screwing tool 2, 3 and / or for a defined screwing parameter setting of screwing tools 2, 3.

[0032] For example, a first screwing tool 2 can have a first color marking and a second screwing tool 3 can have a second color marking that is different from the first color marking, and the indication signal, which, depending on the desired removal information 210, describes an indication of the desired screwing tool 2, 3 intended for an upcoming first screwing process 100, 101, can output a color signal via an output device 7, 8 that corresponds to the color marking of the screwing tool 2, 3 to be used for the upcoming screwing process 100, 101.Thus, the assembly management system can have an assignment of a screwing tool 2, 3 to its color marking, so that the color marking of the screwing tool 2, 3 can also be assigned to its screwing parameter settings, so that an indication of the screwing tool 2, 3 to be used can be issued to the worker by means of an output that outputs the corresponding color information via at least one output device 7, 8. The color information output via the output device 7, 8 can, for example, be output as visually perceptible information about the corresponding color and / or as acoustic information, e.g., as an announcement stating the color.

[0033] In addition to the method, the invention comprises an arrangement 1 comprising at least one screwing tool 2, 3, preferably at least two screwing tools 2, 3, and at least one screwing tool receptacle 4, 5, in particular at least two screwing tool receptacles 4, 5, wherein the at least one screwing tool 2, 3 can be received in the at least one screwing tool receptacle 4, 5. A removal detection means 11 is assigned to the screwing tool receptacle 4, 5; preferably, the at least one screwing tool receptacle 4, 5 has a removal detection means 11. The removal detection means 11 is configured to detect the removal of the at least one screwing tool 2, 3 from the screwing tool receptacle 4, 5 and to generate removal information 200. For example, the removal detection means 11 can be designed as a proximity sensor, the sensor signal of which is transmitted to a computer unit 12 or an assembly management system 6.The arrangement 1 further comprises the computer unit 12, which is configured to compare the removal information 200 with a target removal information 210 during a comparison 140. The arrangement 1 also comprises an output device 7, 8 for outputting 150 a comparison information 220 describing the comparison. The comparison information 220 can indicate to a worker whether the worker has removed the correct screwing tool 2, 3 from the screwing tool holder 4, 5 for carrying out the upcoming screwing process 100, 101. List of reference symbols 1 arrangement 2 first screwing tool 3 second screwing tool 4 first screw tool holder 5 second screw tool holder 6 Assembly management system 7 first output device 8 second output device 9 electrical energy storage 10 Parameter input means 11 Withdrawal recording equipment 12 computer unit 13 first screw joint and / or screw location 14 second screw joint and / or screw location 100 first screwing process 101 second screwing process 110 Providing 2 120 Providing 3 130 Generating 200 140 Comparison of 200 and 210 150 Spending 220 160 Evaluate 200 Withdrawal information 210 Target withdrawal information 220 Comparison information 230 Evaluation information

Claims

[1] Method for carrying out a screwing process (100, 101) by means of a screwing tool (2, 3), comprising the following method steps: - Providing (110) a first screwing tool (2) which is received or can be received in a first screwing tool holder (4); - Providing (120) a second screwing tool (3) which is received or can be received in a second screwing tool holder (5); - generating (130) removal information (200) describing the removal of the first and / or second screwing tool (2, 3) when the first and / or second screwing tool (2, 3) is removed from the respective screwing tool holder (4, 5); - comparing (140) the removal information (200) with a target removal information (210) provided by an assembly management system (6), wherein the target removal information (210) describes a target screwing tool determined for an upcoming screwing process (100) and outputting (150) a comparison information (220) describing the comparison (140). [2] Method according to claim 1, characterized by that depending on the target removal information (210), in particular depending on the comparison information, at least one output device (7, 8) assigned to at least one screwing tool holder (4, 5) outputs an acoustic and / or optical and / or haptic indication signal. [3] Method according to claim 1 or 2, characterized bythat a first output device (7) is assigned to a first screwing tool holder (4) and a second output device (8) is assigned to a second screwing tool holder (5) or has such a device and, depending on the target removal information (210), at least the output device (7, 8) or exclusively the output device (7, 8) outputs an indication signal which has received the screwing tool (2, 3) intended for the next screwing process (100, 101) in its screwing tool holder (4, 5). [4] Method according to one of the preceding claims, characterized by that as the first and / or second screwing tool (2, 3) a screwing tool (2, 3) is used which has no communication connection, in particular no cable-based or wireless communication connection, with the assembly management system (6). [5] Method according to one of the preceding claims, characterized bythat a screwing tool (2, 3) is used as the first and / or second screwing tool (2, 3) which has an electrical energy store (9) for driving an actuator for carrying out screwing processes (100, 101), and charging of the screwing tool-side electrical energy store (9) is carried out or can be carried out when the screwing tool (2, 3) is accommodated in the screwing tool holder (4, 5). [6] Method according to one of the preceding claims, characterized by , - setting a first screwing parameter of a first screwing tool (2), in particular by actuating a parameter input means (10) on the screwing tool side, - setting a second screwing parameter of a second screwing tool (3), in particular by actuating a parameter input means (10) on the screwing tool side, - generating a first assignment information describing an assignment of the first screwing parameter to a first screwing tool holder (4) and - generating a second assignment information describing an assignment of the second screwing parameter to a second screwing tool holder (5) and - Providing the first and second assignment information in the assembly management system (6) and generating target removal information (210) based on the first and / or second assignment information. [7] Method according to one of the preceding claims, characterized by - outputting an indication signal which, depending on the target removal information (210), describes an indication of the target screwing tool (2, 3) determined for an upcoming first screwing process (100) and - Outputting a preparation signal which, depending on the target removal information (210), describes a preparation indication for a target screwing tool (2, 3) determined for a second screwing process (101) which takes place after the upcoming first screwing process (100). [8] Method according to one of the preceding claims, characterized by Generating the target removal information (210) as a function of location information describing the local position of an assembly to be subjected to a screwing process (100, 101). [9] Method according to one of the preceding claims, characterized by Generating evaluation information (230) derived from comparison results from at least two comparisons (140) of withdrawal information (200) and target withdrawal information (210). [10] Method according to one of the claims, characterized byin that a first screwing tool (2) has a first color marking and a second screwing tool (3) has a second color marking which is different from the first color marking, and the indication signal which, depending on the desired removal information (210), describes an indication of the desired screwing tool (2, 3) intended for an upcoming first screwing process (100, 101), outputs a color signal via an output device (7, 8) which corresponds to the color marking of the screwing tool (2, 3) to be used for the upcoming screwing process (100, 101). [11] Arrangement (1) comprising - at least one screwing tool (2, 3) and - at least one screwing tool holder (4, 5), wherein the at least one screwing tool (2, 3) can be received in the screwing tool holder (4, 5), wherein a removal detection means (11) is assigned to the screwing tool holder (4, 5), wherein the removal detection means (11) is designed to detect the removal of the at least one screwing tool (2, 3) from the screwing tool holder (4, 5) and to generate removal information (200) and - a computer unit (12) which is configured to compare the withdrawal information (200) with a target withdrawal information (210) in the course of a comparison (140) and - an output device (7, 8) for outputting (150) comparison information (220) describing the comparison.

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